package com.example.dao;

import com.example.model.Blog;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;
import org.springframework.stereotype.Repository;

import java.util.List;
import java.util.Map;

@Repository
public interface BlogMapper {
    /**
     * 查询所有
     * */
    @Select("select * from t_blog")
    List<Blog> selectBlog();

    /**
     * 根据id查询
     * */
    @Select("select * from t_blog where id = #{id}")
    List<Blog> selectBlogByID(Integer id);

    /**
     * 根据title查询
     * */
    @Select("select * from t_blog where title like concat('%',#{title},'%')")
    List<Blog> selectBlogByTitle(Map<String,Object> map);

    /**
     * 添加
     * */
    @Insert("insert into t_blog (title, content) values (#{title},#{content})")
    int addBlog(Blog blog);

    /**
     * 修改
     * */
    @Update("update t_blog set title=#{title}, content=#{content} where id=#{id}")
    int updateBlog(Blog blog);

    /**
     * 删除
     * */
    @Delete("delete from t_blog where id=#{id}")
    int deleteBlog(Integer id);
}
